Warburg Pincus, a private equity firm focused on growth investing, agreed to acquire a minority stake in Pareto Health, an employee benefit group. Financial terms were not disclosed. "ParetoHealth is proudly contrarian. We are a growing community of employers and brokers challenging the status quo and bringing sense back to employer healthcare. We are excited to partner with Warburg Pincus, whose proven track record in the healthcare and insurance sectors will further enhance our abilities. We are equally excited to continue working with Great Hill, which has greatly contributed to our growth and innovation," Andrew Cavenagh, ParetoHealth CEO.